20
D-NF007/NF0070
5-8. IC PIN FUNCTION DESCRIPTION
Pin No.
Pin name
I/O
Description
1
SEG0
O
Not used (OPEN)
2 to 21
SEG1 to SEG20
O
LCD segment output
22
LINEOUT_MUTE
O
Mute signal output
23
EE_SDA/REM_SDA
I/O
EEPROM data
24
EE_SCL
O
EEPROM clock
25
SYSREQ
O
Request output to IC1001
26
SYSBUSY
O
BUSY output to IC1001
27
IFACK
I
ACK input from IC1001
28
IFBUSY
I
BUS BUSY input from IC1001
29
CEL_CEX
I
Select model
30
SYSSEL
O
Master/Slave select signal output to IC1001
31
IFRST
O
Reset output to IC1001
32
IFRDY
I
IFRDY input from IC1001
33
GND
–
Ground terminal
34
TDI (IFCON)
I
Data for serial communications input
35
TDO (IFCON&VOL DATA)
O
Data for serial communications output
36
TCK (IFCON&VOL CLK)
O
Clock for serial communications output
37
VOL_EN
O
Volume enable output to IC901
38
LINE_DET
I
Not used (OPEN)
39
SUBSYQ
I
Sub code sync interruption input
40
HOLD
I
HOLD switch status detection input
41
OPEN/CLOSE
I
OPEN switch status detection input
42
TU_TEST
I
Tuner test terminal
43
K_PLAY
I
PLAY KEY input
44
K_TUNER
I
TUNER KEY input
45
(CHG_CLK)
O
Clock select phase match output
46
NC
O
Not used (OPEN)
47
DIN OUT
I/O
Command output , DSP status input, subcode Q input
48
MCK
O
Serial interface clock output
49
RW
O
DSP’s serial interface Read/Write signal output
I
DSP’s auto sequencer status
SDRAM initialize output
–
Power supply for CPU and I/O
System reset output
I
Phase match with IC1001
Tuner power control output
Headphone IC mute ON/OFF control output
I
Microcomputer reset terminal
I
Connect to GND
59
XIN75
I
75kHz clock input
60
XOUT75
O
75kHz clock output
61
GND
–
Ground terminal
62
XIN8M
I
8MHz clock input
63
XOUT8M
O
8MHz clock output (OPEN)
64
VDD
–
Power supply for CPU and I/O
65
DC_IN
I
DC IN voltage monitoring input
• IC801 BU18704-S5 (SYSTEM CONTROLLER)
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